Port number settings

You should be able to identify the default port numbers
used in the various versions of WAS so that we can avoid port conflicts if you plan for an earlier version to coexist
or interoperate with v8.5.

Supported configurations:

This article is about configuration migration, such as migrating deployment managers and federated nodes in a network deployment environment.
The Application Migration Toolkit for WebSphere Application Server provides support for migrating applications from previous versions of WAS to the latest product version. For information about migrating applications, read more about the Application
Migration Toolkit.
sptcfg

When you configure WebSphere Application Server resources or assign port numbers to other applications, you must avoid conflicts with other assigned ports. In addition, when you configure a firewall, you must explicitly enable access to particular port numbers.

If ports are already defined in a configuration being migrated, the migration tools fix the port conflicts in the v8.5 configuration and log the changes for the verification .

(iseries) Notes:

When you install WebSphere Application Server, the default instance is created with the default port values.
When creating a WAS profile with the manageprofiles script, we can specify different port values.

For more information about port numbers that the IBM i system currently uses, enter the NETSTAT
*CNN command on the CL command line. Press F14 to view assigned port numbers.

We can also use the port validator tool to find port conflicts
between different WebSphere Application Server profiles, products, and servers. See port validator tool for more information.

Avoid trouble: Port conflicts might occur if you assign a custom port value within the recommended default dynamic port range. Because port values are assigned dynamically, WAS cannot predetermine
the port values that will be assigned to the servers. A way to avoid
the possibility of a port conflict among servers is to either accept
the default server port values assigned by the Profile Management Tool, or assign custom port values that do not fall within the default dynamic port range. In operating systems released prior to 2008, the default dynamic port range is 1025 to 5000, and in newer operating systems the dynamic port range is 49152 to 65535. Because these default ranges are recommended by the Internet Assigned Numbers Authority
(IANA), they are common across all operating systems.gotcha

When you federate an application server node into a deployment-manager cell, the deployment manager instantiates
the node agent server process on the application server node. The node agent server uses these port assignments by default.

When you federate an application server node into a deployment-manager cell, the deployment manager instantiates
the node agent server process on the application server node. The node agent server uses these port assignments by default.